N450
N450 releases at Wolfspeed INC. fell from 13k lb to 0 lb (100% lower) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Wolfspeed INC.
Total reported releases 10k lb fell sharply year over year (-60%). Total releases concentrations have more than halved since 2010.
4600 SILICON DR, Durham, North Carolina · 334413 · Computers and Electronic Products · operated by Wolfspeed INC
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
Hydrogen fluoride
Hydrogen fluoride concentrations are roughly unchanged from 2010.
Ammonia
Ammonia concentrations are up 50% since 2010.
N-Methyl-2-pyrrolidone
N-Methyl-2-pyrrolidone concentrations have more than doubled since 2010.
Nitric acid
Nitric acid concentrations have more than doubled since 2011.
Certain glycol ethers
Certain glycol ethers concentrations have more than halved since 2010.
Potassium perfluorooctanesulfonate
Potassium perfluorooctanesulfonate volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (17 Census block groups, population-weighted demographics): a population of 30,913. Why we surface this →
17.5%
Low-income
52.2%
People of color
4.8%
Under age 5
9.9%
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.
Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.
What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.